Temp control problem after heater core change.
So, I just knocked out a heater core replacement in my 2000 WJ Limited with the dual zone controls. While I had everything apart I replaced my blend doors and recirc door that so commonly fail. I thought I did a good job and had no issues until I turned on the heat....
The heat comes on when I select the "cold" setting and the A/C comes on when I select the "hot" setting. I obviously hooked something up backwards or installed a door in the open position when it should have been closed or something to that effect. Other than the temps being backwards everything else works fine.
Can anybody tell me exactly what it is that I need to change?
I want to be able to know exactly what I'm trying to do before tearing out the dash again! It's kind of hard to do a trial and error when the dash is out. You can't exactly turn on the controls and test things.
Any input would be greatly appreciated. Thank you.